BS 6404-8.1:2001

Superseded

View Superseded by

Magnetic materials. Individual materials Magnetically hard materials

Available format(s)

Hardcopy , PDF

Superseded date

30-06-2015

Language(s)

English

Published date

15-03-2006

Publisher

British Standards Institution

FOREWORD
1 Scope
2 Normative references
3 Types of materials and their applications
4 Classification
   4.1 Principal magnetic properties
   4.2 Additional magnetic properties
5 Chemical composition
6 Densities
7 Designation
8 Mode of shipment and dimensions
9 Testing
   9.1 Extent of testing
   9.2 Testing methods
10 Grounds for rejection
11 Description of tables of standard properties
   11.1 Magnetically hard alloys
        11.1.1 Aluminium-nickel-cobalt-iron-titanium
               alloys (AlNiCo)
        11.1.2 Chromium-iron-cobalt alloys (CrFeCo)
        11.1.3 Iron-cobalt-vanadium-chromium alloys
               (FeCoVCr)
        11.1.4 Rare earth-cobalt alloys (RECo)
        11.1.5 Neodymium-iron-boron alloys (REFeB)
   11.2 Magnetically hard ceramics (magnetically hard
        ferrites)
        11.2.1 Chemical composition
        11.2.2 Manufacturing method
        11.2.3 Sub-classification
        11.2.4 Magnetic properties and densities
        11.2.5 Dimensional tolerances
   11.3 Bonded magnets
        11.3.1 Chemical composition
        11.3.2 Manufacturing
        11.3.3 Sub-classification
        11.3.4 Magnetic properties and densities
        11.3.5 Dimensional tolerances
12 Irreversible demagnetization behaviour
13 Tables 8 to 21
Annex A (informative) Physical data and mechanical
        reference values of AlNiCo, CrFeCo, FeCoVCr,
        SmCo, NdFeB and hard ferrite magnets

Gives minimum values for the principal magnetic properties of, and dimensional tolerances for technically important magnetically hard materials (permanent magnets).

Committee	ISE/108
DevelopmentNote	Supersedes BS 6404-8.1(1988). (08/2001) Supersedes 96/711719 DC. (03/2006)
DocumentType	Standard
Pages	36
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 60404-8-1:2015
Supersedes	BS 6404-8.1:1988

IEC 60050-221:1990	International Electrotechnical Vocabulary (IEV) - Part 221: Magnetic materials and components
IEC 60404-5:2015 RLV	Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods of measurement of magnetic properties
IEC 60050-121:1998	International Electrotechnical Vocabulary (IEV) - Part 121: Electromagnetism
IEC 60404-1:2016	Magnetic materials - Part 1: Classification
IEC 60404-7:1982	Magnetic materials. Part 7: Method of measurement of the coercivity of magnetic materials in an open magnetic circuit